* {
  margin: 0px;
  padding: 0px;
}
/*轮播区域*/
.rotationBox {
  position: relative;
  width: 520px;
  height: 280px;
  background: skyblue;
  margin: 0px auto;
}
.rotationBox img {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0px;
  left: 0px;
  /*隐藏*/
  display: none;
}
.rotationBox img:nth-child(1) {
  /*显示*/
  display: block;
}
/*右下角小圆点*/
.rotationBox .rotationList {
  position: absolute;
  right: 200px;
  bottom: 20px;
  background: rgba(255, 255, 255, 0.2);
  padding: 5px;
  border-radius: 10px;
}
.rotationBox .rotationList li {
  cursor: pointer;
  float: left;
  list-style: none;
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 50%;
  margin: 0px 5px;
}
.rotationBox .rotationList .f {
  background: red;
}
